Suppression mechanism of weld appearance defects in tandem TIG welding by numerical modeling

In high-speed tungsten inert gas (TIG) welding, the premature solidification of liquid metal in low-temperature zone of molten pool results in the formation of weld appearance defects (WADs) such as undercut and humping weld. Tandem TIG welding was developed to prevent the formation of the WADs and...

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Bibliographic Details
Main Authors: Guoliang Qin, Chao Feng, Hong Ma
Format: Article
Language:English
Published: Elsevier 2021-09-01
Series:Journal of Materials Research and Technology
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S2238785421005974